<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>Vue 绑定</title>
    <script src="https://unpkg.com/vue"></script>
</head>
<body>
<div id="app-2">
    <span v-bind:title="message">
        鼠标悬停几秒钟查看动态绑定的提示信息！
    </span>
</div>
<script>
    var  app2= new Vue({
        el:'#app-2',
        data:{
            message:'页面加载于'+ new  Date().toLocaleString()
        }
    })
</script>
</body>
</html>